CC2640R2F&TI-RTOS 创建 一个任务 和 使用 信号量 超时来闪烁 LED灯

Posted 2020-11-21 所长

/*
 * data_process.c
 *
 *  Created on: 2018年7月5日
 *      Author: admin
 */

#include <ti/sysbios/knl/Task.h>
#include <ti/sysbios/knl/Clock.h>
#include <ti/sysbios/knl/Event.h>
#include <ti/sysbios/knl/Queue.h>
#include <ti/sysbios/knl/Semaphore.h>


#include "board_led.h"
#include "board_uart.h"

#include <ti/drivers/dpl/SemaphoreP.h>

#include "data_process.h"

// Task configuration
#define LF_TASK_PRIORITY      1
#define LF_TASK_STACK_SIZE   256

// Task configuration
Task_Struct lfTask;
Char lfTaskStack[LF_TASK_STACK_SIZE];

Semaphore_Handle semLedFicker;


/*********************************************************************
 * @fn      LedFicker_createTask
 *
 * @brief   Task creation function for the led ficker.
 *
 * @param   None.
 *
 * @return  None.
 */
void LedFicker_createTask(void)
{
  Task_Params taskParams;

  // Configure task
  Task_Params_init(&taskParams);
  taskParams.stack = lfTaskStack;
  taskParams.stackSize = LF_TASK_STACK_SIZE;
  taskParams.priority  = LF_TASK_PRIORITY;

  Task_construct(&lfTask, LedFicker_taskFxn, &taskParams, NULL);
}

/*********************************************************************
 * @fn      LedFicker_taskFxn
 *
 * @brief   Application task entry point for the Led Ficker.
 *
 * @param   a0, a1 - not used.
 *
 * @return  None.
 */
static void LedFicker_taskFxn(UArg a0, UArg a1)
{
    Semaphore_Params semLedFickerParams;

    uint32_t timeoutInTicks = 1000 * (1000/Clock_tickPeriod);

    Semaphore_Params_init(&semLedFickerParams);
    semLedFicker = Semaphore_create(0, &semLedFickerParams, NULL); /* Memory allocated in here */

    if (semLedFicker == NULL) /* Check if the handle is valid */
    {
        bspDebugPrintf( true,"semLedFicker could not be created.\\r\\n");
    }
    else
    {

        bspDebugPrintf( true,"semLedFicker be created.\\r\\n");
    }

    // Application main loop
    for (;;)
    {

        Semaphore_pend(semLedFicker, timeoutInTicks);

        //翻转LED灯
        ledBoardToggle( ledBlueBoard );
        ledBoardToggle( ledRedBoard );
    }
}

/*
 * data_process.h
 *
 *  Created on: 2018年7月5日
 *      Author: admin
 */

#ifndef APPLICATION_DATA_PROCESS_H_
#define APPLICATION_DATA_PROCESS_H_

void LedFicker_createTask(void);

static void LedFicker_taskFxn(UArg a0, UArg a1);

#endif /* APPLICATION_DATA_PROCESS_H_ */

 需要 吐槽的 是 我居然 没有 找到  系统 延时函数 ，所以采用  信号量超时 来 作为  LED 延时！

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